According to thenextweb.com, Send makes email more like SMS by removing the subject line and taking the users directly to their contacts list.

Send is supposed to it gives the users the benefits of quick SMS-like communications with their existing email contacts, without requiring a phone number or separate app.

Send does not need a subject line, signature or salutation and it will surface the user's frequent and recent contacts when they open the app. They can also see when their contacts are typing a reply if they are Send users.

Send is the latest app to arrive out of Microsoft Garage.

Send is now available for download on the iOS App Store. The app will soon arrive for Android and Windows Phone phones.